nix package (https://github.com/NixOS/nixpkgs) to install deno (https://deno.land/). See https://github.com/NixOS/nixpkgs/issues/78461

deno.nix

{ stdenv, fetchurl, unzip }:

# this is more stupid version of https://github.com/denoland/deno_install/blob/master/install.sh
# Run this to get last version:
# curl -sSf https://github.com/denoland/deno/releases | grep denoland/deno/releases/downloa | grep -e x86_64-apple-darwin -e x86_64-unknown-linux-gnu | head -2

# based on https://qiita.com/kimagure/items/de2a4ff45dd8fe8be4b1

stdenv.mkDerivation rec {
  name = "deno-${version}";
  version = "v0.38.0";
  src = fetchurl ({
    x86_64-linux = {
      url = "https://github.com/denoland/deno/releases/download/${version}/deno-x86_64-unknown-linux-gnu.zip";
      sha256 = "04bcrb7v6hj1rihh4hspwkjddab4xhw8rcrc8s199l12f0i5zpp7";
    };
    x86_64-darwin = {
      url = "https://github.com/denoland/deno/releases/download/${version}/deno-x86_64-apple-darwin.zip";
      sha256 = "04fyslxk09y21sv6ypbm8kq79yylkkc8qwd3l0b4mbgszkdvrzdr";
    };
  }).${stdenv.hostPlatform.system};

  buildInputs = [ unzip  ];

  ## unzip deno into proper path
  unpackPhase = ''
    mkdir -p $out/bin
    unzip $src -d $out/bin
  '';
  ## don't run install, since the binary is already there
  dontInstall = true;
}